Home / 658,897.34-988,348.94-321,964.47

Finding the Fourth Proportional to 658,897.34, 988,348.94 and 321,964.47

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Solution

The fourth proportional to 658,897.34, 988,348.94 and 321,964.47 is: 482,948.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,897.34 : 988,348.94 = 321,964.47 : x
  2. Step 2: Convert to fraction form
    658,897.34/988,348.94 = 321,964.47/x
  3. Step 3: Cross multiply
    658,897.34x = 988,348.94 × 321,964.47
  4. Step 4: Simplify right side
    658,897.34x = 318,213,242,239.71
  5. Step 5: Solve for x
    x = 318,213,242,239.71/658,897.34
  6. Step 6: Final answer
    x = 482,948.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.